Hickory nut vs. Walnut — Health Impact and Nutrition Comparison
Summary
Walnuts are richer in protein and dietary fiber and have a more favorable fat composition. In comparison, hickory nuts are slightly higher in net carbs.
Walnuts are a better source of vitamins B1 and B5, copper, calcium, and iron, whereas hickory nuts are richer in vitamins B6 and B9 or folate, manganese, selenium, and zinc.
Overall, walnuts are better researched to have a beneficial impact on health.
Table of contents
Introduction
Nuts are an incredible way to add protein, healthy fats, fiber, vitamins, and minerals to any meal. They’re often referred to as “superfoods” due to the number of nutrients they provide. However, not all nuts are equal. In this article, we will discuss walnut and hickory nut and see how the two compare to each other.
Classification
The similarities between walnuts and hickory nuts can be explained by the fact that they share a family - Juglandaceae, also known as the walnut family. However, walnut belongs to the Juglans genus, while the hickory’s genus is called Carya.
Appearance
Walnuts and hickory nuts can look similar. Both have a round green husk that turns brown as it ripens. The husk of hickory nuts tends to be harder and smoother than that of walnuts. Different species of hickory nut can also have oblong or heart-shaped husks.
While the actual nuts inside also look alike, hickory nuts tend to be smaller, and walnuts are usually lighter in color.
Taste and Use
Hickory nuts and walnuts can be interchangeably used in recipes as they both have a slightly sweet, earthy, and sometimes bitter taste.
Walnuts and hickory nuts can be used as snacks alone or mixed with other nuts, as ingredients in pastries, soups, salads, and smoothies, or processed into butter, milk, and flour.
Nutrition
The nutritional information below is presented for raw English walnuts and raw dried hickory nuts.
Macronutrients And Calories
One average serving size of nuts per person is one ounce or 14 halves, equal to 28.35g.
One average walnut or hickory nut weighs 3 to 4 grams.
Macronutrient Comparison
Contains
more
CarbsCarbs
+33.1%
Contains
more
OtherOther
+12.9%
Contains
more
ProteinProtein
+19.7%
Contains
more
WaterWater
+53.6%
Calories
Walnuts and hickory nuts are both nutrient-dense, very high-calorie foods and quite similar in calorie content. A hundred-gram serving of walnut and hickory nut provides 654g and 657g calories, respectively.
One average serving size of these nuts provides 186 calories.
Protein
Nuts are overall an excellent source of protein, walnuts more so than hickory nuts. One average serving of walnuts and hickory nuts contains 4.3g and 3.6g of protein, respectively.
Walnuts fall in the top 33%, and hickory nuts are in the top 38% of foods as a source of protein. A 100g of walnuts provides 15.23g of protein, while the same serving of hickory nuts contains 12.72g.
The two nuts are also similar in protein composition, containing some level of all essential amino acids. However, both are relatively lower in lysine and methionine.
Fats
Hickory nuts and walnuts can be considered one of the best sources of fats. Both fall in the top 2% of foods as a source of fats, containing around 65g per 100g serving or 18g per average serving.
Walnuts are slightly higher in fats. A 100g serving of walnuts covers 100% of the needed daily value of fats.
Walnuts also have a more favorable fat composition, consisting of 76% polyunsaturated, 14% monounsaturated, and only 10% saturated fats. Meanwhile, the fat content of hickory nuts consists of 36% polyunsaturated, 53% monounsaturated, and 11% saturated fats.
Fat Type Comparison
Contains
more
Mono. FatMonounsaturated Fat
+265.1%
Contains
less
Sat. FatSaturated Fat
-13%
Contains
more
Poly. FatPolyunsaturated fat
+115.5%
Carbohydrates
Hickory nuts are higher in total carbohydrates compared to walnuts. Hickory nuts are richer in net carbs, while walnuts contain a little more dietary fiber.
A 100g serving of walnuts contains 13.7g of net carbs and 6.7g of dietary fiber, whereas the same serving of hickory nuts contains 11.8g of net carbs and 6.4g of dietary fiber.
Vitamins
Walnuts and hickory nuts have slightly differing vitamin profiles.
Hickory nuts provide 3 times more vitamin B5 and vitamin B1 (thiamine). Walnuts are 2.5 times richer in vitamin B6 and folate or vitamin B9.
The nuts contain the remaining vitamins in significantly lower amounts. However, hickory nuts contain 2 times more vitamin C and 7 times more vitamin A, whereas walnuts are slightly richer in vitamins B2 and B3.
Vitamin Comparison
Contains
more
Vitamin CVitamin C
+53.8%
Contains
more
Vitamin AVitamin A
+555%
Contains
more
Vitamin B1Vitamin B1
+154.3%
Contains
more
Vitamin B5Vitamin B5
+206.3%
Contains
more
Vitamin B2Vitamin B2
+14.5%
Contains
more
Vitamin B3Vitamin B3
+24%
Contains
more
Vitamin B6Vitamin B6
+179.7%
Contains
more
FolateFolate
+145%
Minerals
The mineral composition of walnuts and hickory nuts are pretty similar. However, walnuts are richer in copper, calcium, and iron.
Hickory nuts, on the other hand, are higher in manganese, selenium, and zinc and lower in sodium.
They are almost equal in magnesium, potassium, and phosphorus.
Mineral Comparison
Contains
more
ZincZinc
+39.5%
Contains
less
SodiumSodium
-50%
Contains
more
ManganeseManganese
+35%
Contains
more
SeleniumSelenium
+65.3%
Contains
more
CalciumCalcium
+60.7%
Contains
more
IronIron
+37.3%
Contains
more
CopperCopper
+114.9%
Acidity
One of the ways to look at food’s acidity is by calculating its PRAL value. The PRAL value of foods shows how much acid is produced in the organism by the given food.
The PRAL value of walnut and hickory nut is 5.6 and 4.2, respectively, making walnut more acidic or acid-producing.
Health Impact
Tree nut consumption has been researched to have various beneficial effects on health. Walnuts, in particular, are more popularly used in scientific studies compared to hickory nuts.
Health Benefits
Cardiovascular Health
Walnuts have been researched to decrease cardiovascular disease risks by reducing low-density lipoprotein or LDL cholesterol, also known as “bad” cholesterol, and blood pressure. Walnuts may also improve endothelial function and decrease oxidative stress and inflammation markers (1, 2).
While it can be assumed that hickory nuts would have similar effects on cardiovascular health, the impact of these nuts has not yet been researched.
Diabetes
Similarly, walnut consumption has been studied to decrease the risk of developing diabetes, while there is no research on the impact of hickory consumption on diabetes (3, 4).
Cancer
Research carried out on mice has found walnuts to slow the growth rate of breast, colon, prostate, and kidney cancer cells through various mechanisms (5).
Hickory nuts have also been researched to inhibit the growth of ovarian cancer cells due to the effects of certain polyphenolic compounds found within (6).
Downsides and Risks
Allergy
Allergic reactions to nuts are called tree nut allergies. Some studies have found walnut allergy to be quite prevalent in adults (7). At the same time, however rare, hickory nut allergy can be just as serious.
Since these tree nuts belong to the same family, a cross-reactivity between walnuts and hickory nuts is possible.
Symptoms of a tree nut allergy vary from gastrointestinal symptoms, such as abdominal pain, nausea, vomiting, and diarrhea, to difficulty swallowing, itching, runny rose, shortness of breath, and a life-threatening reaction called anaphylaxis.
References
- https://pubmed.ncbi.nlm.nih.gov/24500935/
- https://www.jacc.org/doi/10.1016/j.jacc.2020.07.071
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6220814/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738245/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952627/
- https://pubmed.ncbi.nlm.nih.gov/33520293/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5875412/
Infographic
Comparison summary table
Lower in Saturated Fat | |||
Lower in Sugar | |||
Lower in Sodium | |||
Lower in Glycemic Index | |||
Lower in price | |||
Lower in Cholesterol | Equal | ||
Rich in minerals | Equal | ||
Rich in vitamins | Equal |
All nutrients comparison - raw data values
Nutrient | Opinion | ||
Calories | 657kcal | 654kcal | |
Protein | 12.72g | 15.23g | |
Fats | 64.37g | 65.21g | |
Vitamin C | 2mg | 1.3mg | |
Net carbs | 11.85g | 7.01g | |
Carbs | 18.25g | 13.71g | |
Magnesium | 173mg | 158mg | |
Calcium | 61mg | 98mg | |
Potassium | 436mg | 441mg | |
Iron | 2.12mg | 2.91mg | |
Sugar | 2.61g | ||
Fiber | 6.4g | 6.7g | |
Copper | 0.738mg | 1.586mg | |
Zinc | 4.31mg | 3.09mg | |
Starch | 0.06g | ||
Phosphorus | 336mg | 346mg | |
Sodium | 1mg | 2mg | |
Vitamin A | 131IU | 20IU | |
Vitamin A | 7µg | 1µg | |
Vitamin E | 0.7mg | ||
Manganese | 4.61mg | 3.414mg | |
Selenium | 8.1µg | 4.9µg | |
Vitamin B1 | 0.867mg | 0.341mg | |
Vitamin B2 | 0.131mg | 0.15mg | |
Vitamin B3 | 0.907mg | 1.125mg | |
Vitamin B5 | 1.746mg | 0.57mg | |
Vitamin B6 | 0.192mg | 0.537mg | |
Vitamin K | 2.7µg | ||
Folate | 40µg | 98µg | |
Choline | 39.2mg | ||
Saturated Fat | 7.038g | 6.126g | |
Monounsaturated Fat | 32.611g | 8.933g | |
Polyunsaturated fat | 21.886g | 47.174g | |
Tryptophan | 0.139mg | 0.17mg | |
Threonine | 0.422mg | 0.596mg | |
Isoleucine | 0.576mg | 0.625mg | |
Leucine | 1.027mg | 1.17mg | |
Lysine | 0.497mg | 0.424mg | |
Methionine | 0.3mg | 0.236mg | |
Phenylalanine | 0.713mg | 0.711mg | |
Valine | 0.73mg | 0.753mg | |
Histidine | 0.389mg | 0.391mg | |
Fructose | 0.09g |
Which food is preferable for your diet?
Low Calories diet | ||
Low Fats diet | ||
Low Carbs diet | ||
Low Glycemic Index diet |
People also compare
Vitamins & Minerals Daily Need Coverage Score
Comparison summary
References
All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.
- Hickory nut - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170177/nutrients
- Walnut - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170187/nutrients
All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.